Lubricator.



W. LAWRENCE.'

LUBRIGATUR.

APPLIGATION FILED JAN. 29. 191s.

1,099,608. Patented June 9, 1914,

2 SHEETS-SHEET 1.

coLummA PLANOGRAPH c0..w^sH|NG1-0N. u. c.

W. LAWRENCE.

LUBRIGATOR.

APPLICATION FILED JAN. 29, 1913.

1,099,608' v PatentedJune 9,1914y 2 SHEETS-SHEET Z.-

M 1 M 'Mmmm UNTTED STATES PATENT OFFICE.

WILLIS LAWRENCE, OF YONKERS, NEW YORK.

LUBRICATOR.

- cators, of which the following is a full and clear specification. 4

This invention relates to lubricators which are more especially intendedto feed lubricating emulsions, such for example as finely dividedgraphite suspended in oil. emulsions have long been in use forlubricating bearings of various descriptions which are exposed toa highdegree of heat such e. g. as the piston, cylinder, and valve gear of asteam engine, the object being to provide a lubricant of suilicient bodywhich will be capable of resisting the tendency to disintegrate underthe high degree of heat to which it is subjected. Certain drawbacks havebeen encountered in the use of emulsions of this character due to theseparation by 4gravity which takes place between the graphite and theoil in which it is suspended so that the lubricant which reaches thebearing surfaces varies in character and cannot be relied upon.

This invention also relates to lubricators i in which positivelyactuated means are employed for delivering the lubricant to the surfacesto be lubricated. Y

One of the objects of the present invention is to provide improved meanswhereby the lubricating emulsion in a reservoir can be constantlyagitated to insure that it is in thoroughly mixed condition at alltimes.

A further object is to provide improved means for conveying thelubricantV to its destination, said means being adapted to prevent theseparation by gravity from taking place during its progress.

Another object is to provide an improved operating connection betweenthe agitating means and the pump for forcing the lubricant to thesurfaces to beV lubricated.

Another object is to provide 'the reservoir of the lubricator withimproved feeding means which is adapted to aid in preserving theseparation by gravity.

Other and further objects will appear in the specification and bespecifically pointed out in the appended claims, reference beingSpecification of Letters Patent. Application tiled January 29, 1913.

Such y Patented J une 9, 1914. Serial No. 744,928.

had to the accompanying drawings, inv

which- Figure 1 is a central vertical section of one embodiment of myinvention, parts being shown in elevation; Fig. 2 is a section on theline II-II Fig. 1; Fig. 3 is a horizent-al section corresponding to theline lIIIII, Fig. 1, but with one of the pump castings shown in fullfrom above; Fig. 4 is a detail section on the line IV-V Fig. 3.

Referring more particularly to the drawings and to the embodiment showntherein,

a reservoir for lubricant is provided in the form of an upper shell orportion 1, which may be constructed of any suit-able material, such asglass or metal having an annular flange 2 by means of which it ismounted upon an annular transverse wall 3 which eX- tends around theupper edge of a central well L1 and connects said well to said uppershell or portion 1. The shell 1 is secured to the annulus 3 by means ofscrews 5 or other suitable fasteners. The well 4 is in the form of ahopper within the throat of which is journaled a rock shaft 6. Said rockshaft is provided with a longitudinal slot within which is mounted anagitator or blade 7, said blade being disposed to have the greaterportion thereof projecting upward'into the well or hopper 4 and with adepending portion below the rock shaft 6 which projects through a slot 8(see Fig. 8) whichextends longitudinally throughout a portion of thelength of a cross head comprising a central hub or block 9 and trunnions10 projecting from either end thereof, said trunnions being socketedwithin a pair of laterally spaced slides 11 (see Fig. 2).- Said slidesare reciprocably mounted in oppositely disposed recesses in thecrosshead housing 12.

As shown in Fig. 1, the blade 7 is provided with a slot 13 through whichextends a screw 14 which is threaded within a central hub 9 of the crosshead. Each of the slides 11 is provided with T-slot 15, for thereception of the T-head 16 on the end of a plunger 17, there being oneof said plungers operated by each slide 11. Each plunger 17 reciprocateswithin a cylinder 18 provided with an inlet port or ports 19 leadingfrom a receptacle Q0 which catches the lubricant which is fed from thereservoir through the feeding means in the manner to be presentlyreferred to. An outlet port 21 which is controlled by a valve 22 opensinto an outlet chamber 23. Said chamber 28 communicates by way of a port24- with a socket 25 into which the feed of the lubricating pipe may bethreaded. As shown best in Fig. 4, these several partsare preferablyconstructed in a single casing provided with a flange 2G, which fitssnugly against the end wall 27 of the cross head housing. A. suitablestuffing box for each plunger 17 may be provided by forming a protrudingannulus 28 which as shown in F ig. 3 extends into a complementary recessfor the reception of suitable packing.

Referring now more especially to Figs. 1 and 2, the reservoir forlubricant is provided with feeding means in the form of a point ordropper 29 which is threaded into the flanged upper end of the well orhopper et. Said dropping point is provided with an outlet port 30 whichdischarges on to the curved surface of the inner wall of the point 29,said surface being reduced downwardly in the present embodiment byhaving said point 29 cut on the slant, in this way reducing the surfaceof cohesion to which the lubricant clings, to a minimum at the point ofseparation between said point and the lubricant. Said point- 29 issuitably disposed to drop the lubricant into the receptacle 2O fromwhence it feeds to the cylinders 18 when the plungers 17 move to theright. In order to provide suitable and efficient means for controllingthe port openings 30 leading to each of the points 29, a valve rod 31provided with a needle point 32, is provided adjacent its upper end withthe threaded portion 33 which is threaded in a conical split nut 34 ofwell known construction and operation. The shell 1 is provided abovewith a central opening 35 for introducing a lubricant, said openingbeing closed by a cap 36 which may be secured thereto in any suitablemanner.

By an inspection of the drawings, it will be seen that the dischargeoutlet 30 of the reservoir 1 is disposed adjacent to the path ofmovement of a portion of the agitator blade 7 which has the greatestscope of movement and that the agitator projects the lubricant towardsaid outlet 30. It will also be noticed that the discharge opening 30 isarranged below the top and above the bottom of the reservoir as a whole,which comprises the parts 1 and 4L and that the bottom wall or well 4tis contracted downwardly from said discharge outlet 30. The agitatorblade 7 is made with minimum cross section adjacent the rock shaft G toconfine breakage to the agitator blade.

lVhat I claim is:

1. In a lubricator, a reservoir having a bottom well enlarged upwardly,a rock shaft journaled at the bottom of said well., a blade mounted onsaid rock shaft, said blade being thereby adapted to be oscillated fromone side to the other of said well, said reservoir being provided withan outlet above and t0 one side of said well, and means for conveyingoil from said outlet.

2. A lubricator comprising a reservoir, an agitator disposed adjacentthe bottom of said reservoir, said reservoir being provided with atransverse wall adjacent the path of movement of the upper edge of saidagitator and a discharge outlet opening downwardly through saidtransverse wall.

3. In a lubricator, a rock shaft, an agitator blade projecting fromopposite sides of said shaft, a. reservoir for lubricant into which theagitator blade on one side of the shaft projects, a pump connected tothe agitator blade on the opposite side of said shaft, and means forfeeding the lubricant from said reservoir to said pump.

In a lubricator, a rock shaft, an agita.- tor blade j irojecting` fromopposite sides of said shaft, a. reservoir for lubricant into which theagitator blade on one side of the shaft projects, a pump connected tothe agitator blade on the opposite side of said shaft, and means forfeeding the lubricant from said reservoir to said pump, said feedingmeans .being constructed and arranged to deliver the mixed lubricant inan attenuated stream to prevent separation by gravity of said lubricant.l

5. In a lubricator, a rock shaft, an agitator blade projecting fromopposite sides of said shaft, a reservoir for lubricant into which theagitator blade on one side of the shaft projects, a pump connected tothe agitator blade on the opposite side of said shaft, and means forfeeding the lubricant from said reservoir to said pump, said blade beingconstructed with its least cross-sectional area and strength adjacentsaid rock shaft to adapt it to break at that point under abnormal loadsupon the oppositely extending portions of said blade.

6. A lubricator comprising a reservoir, an agitator disposed adjacentthe bottom of said reservoir, said reservoir being provided with atransverse wall adjacent the path of movement of the 4upper edge of saidagitator and a discharge outlet opening downwardly through saidtransverse wall, and means connected with said discharge outlet formaintaining an attenuated outflow from said outlet.-

7. In a lubricator for lubricants embodying ingredients of differentspecific gravities, a reservoir provided with a discharge outlet abovethe bottom of said reservoir, an agitator disposed within said reservoirbelow said outlet, said agitator being adapted to impel the heavieringredients upwardly from the bottom of said reservoir toward saidoutlet, and means for driving said agitator. v

8. A lubricator comprising a reservoir for lubricant, an `agitator forvmixed lubricants in said reservoir, and means for feeding the lubricantfrom said reservoir, said feeding means including a surfaceconvergingdownwardly over which the 'lubricant flows and a valve forcontrolling said How, said valve being arranged above said feeding meansand adjacent to the upper edge of said agitator. Y

9. A lubricator comprising a reservoir for lubricants, an agitator bladein said reservoir, means for driving said blade, a pump having a piston,and a member movably supported by said piston and'having powertransmitting engagement with said agitator blade.

10. A lubrcator comprising a reservoir for lubricant, an agitator insaid reservoir, means for driving said agitator, means for feeding theagitated lubricant from said reservoir, and lubricant conveying meansreceiving thelubricant from said feeding means, said conveying meansbeing operatively connected to said agitator driving means, by means ofsaid agitator.

11. A lubricator comprising a reservoir for lubricant and a bladeoscillatable about an axis adjacent the bottom of said reservoir, saidreservoir being provided with feeding means arranged to draw off thelubricant adjacent the path of movement of the upper edge of said bladeand to feed it in an attenuated stream therefrom. Y

12. In a lubricator, a reservoir for lubricant, a rock shaft j ournaledin said reservoir, a lubricant agitating blade carried by said rockshaft, and a lubricant pump provided with a piston or plungeroperatively connected to said rock shaft by means of said blade.

13. In a lubricator, a reservoir for lubricant, a rock shaft journaledin Said reservoir, a lubricant agitating blade carried by said rockshaft, and a lubricant pump provided with a piston or plungeroperatively connected to said blade, said pistonvor plunger having aslip joint connection with said blade.

14. In a lubricator, a reservoir for lubricant, a rock shaft j ournaledin said reservoir, a blade carried by said rock shaft, spaced slidesarranged below said rock shaft, the lower edge of said blade beingoperatively connected with said slides, and pistons or plungers drivenby said slides.V

15. In a lubricator, a reservoir for lubricant, a rock shaft, a bladecarried by said rock shaft and projecting into said reservoir, saidblade being provided with a portion depending below said rock shaft, areciprocating crossheadhaving operative connection with said dependingportion of the blade to be reciprocated thereby, and pumping meansconnected to said cross head.

16. The combinationV with a lubricator comprising a reservoir forlubricant provided with a discharge outlet and an agitator movable insaid reservoir, of a pump having a piston driven by said agitator, saidpump being provided with a cylinder with a receptacle disposed beneaththe outlet of said reservoir, said receptacle being in opencommunication with said cylinder.

17. In a lubricator for lubricants embodying ingredients of dierentspecific gravities, the combination with a reservoir comprising arelatively large upper portion and a relatively small bottom wellconnected thereto by a transverse wall, said transverse wall beingprovided with a discharge outlet, of an agitator disposed within saidbottom well and belowsaid transverse wall.

18.V In a lubricator for lubricants embodying ingredients of dierentspecific gravities, the combination with a reservoir comprising a bottomwell contracted downwardly andv an upper shell of larger cross sectionalarea than the upper portion of said well, said well and ,upper shellbeing united by an annulus within which a discharge outlet is providedand an agitator movable about an axis adjacent the bottom of said well.

IILLIS LAWRENCE.

Witnesses:

WM. E. KNIGHT, M. G. CRAWFORD.

Copies of this patent may be obtained for ve cents each, by addressingthe f Commissioner of Patents, Washington, '.D. C.

